EP 1393933 B1 20051228 - Tire air pressure monitoring device
Title (en)
Tire air pressure monitoring device
Title (de)
Vorrichtung zur Reifenluftdruckkontrolle
Title (fr)
Appareil de contrôle de la pression de l'air de pneumatiques
Publication
Application
Priority
JP 2002248609 A 20020828
Abstract (en)
[origin: EP1393933A1] A tire air pressure monitoring device includes a sensor (5) which detects a physical quantity relating to tire air pressure, and a transmitter (8) which sends signals detected by the sensor (5). The sensor (5) is a sound pressure level sensor which detects a sound pressure level inside a tire cavity filled with air. The transmitter (8) is enabled to send the signals only when the sound pressure level detected by the sound pressure level sensor is changed. <IMAGE>
IPC 1-7
IPC 8 full level
G01L 17/00 (2006.01); B60C 19/00 (2006.01); B60C 23/04 (2006.01); B60C 23/20 (2006.01)
CPC (source: EP US)
B60C 23/0408 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1393933 A1 20040303; EP 1393933 B1 20051228; DE 60302952 D1 20060202; DE 60302952 T2 20060907; JP 2004082917 A 20040318; JP 3946109 B2 20070718; US 2004040376 A1 20040304; US 6931921 B2 20050823
DOCDB simple family (application)
EP 03019508 A 20030828; DE 60302952 T 20030828; JP 2002248609 A 20020828; US 64980303 A 20030828